Comparison and Contrast between the OSI and TCP/IP Model
... It takes the information into individual packets Provide a signaling service for the remote node Transport protocols mark packets with sequencing information To acknowledge the receipt of a packet Provide multiple application processes to access the network by using individual local addresses to det ...
... It takes the information into individual packets Provide a signaling service for the remote node Transport protocols mark packets with sequencing information To acknowledge the receipt of a packet Provide multiple application processes to access the network by using individual local addresses to det ...
Compare of OSI and TCP/IP
... devised before the protocols were invented. It can be made to work in ...
... devised before the protocols were invented. It can be made to work in ...
Overview of TCP/IP reference model
... 2. FTP(File Transfer Protocol) is a protocol, that allows File transfer amongst computer users connected over a network. It is reliable, simple and efficient. 3. SMTP(Simple Mail Transport Protocol) is a protocol, which is used to transport electronic mail between a source and destination, directed ...
... 2. FTP(File Transfer Protocol) is a protocol, that allows File transfer amongst computer users connected over a network. It is reliable, simple and efficient. 3. SMTP(Simple Mail Transport Protocol) is a protocol, which is used to transport electronic mail between a source and destination, directed ...
ppt - People @EECS
... Reliable Message Delivery: the Problem • All physical networks can garble and/or drop packets – Physical media: packet not transmitted/received ...
... Reliable Message Delivery: the Problem • All physical networks can garble and/or drop packets – Physical media: packet not transmitted/received ...
CCNA1 3.0-11 TCPIP Transport & Application Layers
... For data transfer to begin, both the sending and receiving applications inform the respective operating systems that a connection will be initiated. The connection is established and the transfer of data begins after all synchronization has occurred. ...
... For data transfer to begin, both the sending and receiving applications inform the respective operating systems that a connection will be initiated. The connection is established and the transfer of data begins after all synchronization has occurred. ...
Network Performance Definitions - Network Startup Resource Center
... to the end of its physical trajectory • The velocity of propagation of the circuit depends mainly on the actual distance of the physical circuit • In the majority of cases this is close to the speed of light. For d = distance, s = propagation velocity ...
... to the end of its physical trajectory • The velocity of propagation of the circuit depends mainly on the actual distance of the physical circuit • In the majority of cases this is close to the speed of light. For d = distance, s = propagation velocity ...
2: Internet History How did the Internet come to be?
... Web could be a lot better. It would help is we had easy hypertext editors which let us make links between documents with the mouse. It would help if everyone with Web access also had some space they can write to -- and that is changing nowadays as a lot of ISPs give web space to users. It would help ...
... Web could be a lot better. It would help is we had easy hypertext editors which let us make links between documents with the mouse. It would help if everyone with Web access also had some space they can write to -- and that is changing nowadays as a lot of ISPs give web space to users. It would help ...
On TCP Performance Enhancing Proxies in a Wireless Environment
... –Trying to fill the wireless link with large amounts of traffic • Although TRL-PEP’s main focus is mitigation of wireless channel errors, it still needs a basic congestion control capability to protect against the unlikely event of true congestion-based losses. We achieve this through a simple algor ...
... –Trying to fill the wireless link with large amounts of traffic • Although TRL-PEP’s main focus is mitigation of wireless channel errors, it still needs a basic congestion control capability to protect against the unlikely event of true congestion-based losses. We achieve this through a simple algor ...
version with answers - Computer Science at Princeton University
... In wired Ethernet, the transmitted can sense the wire and decide if the frame was successfully delivered, so no ACK is necessary. In the wireless scenario, the sender has no idea if the frame was successfully delivered, for two reasons. First, fading or the hidden-terminal problem may mean that inte ...
... In wired Ethernet, the transmitted can sense the wire and decide if the frame was successfully delivered, so no ACK is necessary. In the wireless scenario, the sender has no idea if the frame was successfully delivered, for two reasons. First, fading or the hidden-terminal problem may mean that inte ...
Content-aware Switch - University of California, Riverside
... and switch, states for forwarding data packets after splicing Server-side control block list: record state for connections between server and switch ...
... and switch, states for forwarding data packets after splicing Server-side control block list: record state for connections between server and switch ...
pptx - Cornell Computer Science
... before exchanging data, sender/receiver “handshake”: • agree to establish connection (each knowing the other willing to establish connection) • agree on connection parameters ...
... before exchanging data, sender/receiver “handshake”: • agree to establish connection (each knowing the other willing to establish connection) • agree on connection parameters ...
UNIT 5. Instruction to Computer Networks
... Displays the elapsed time (latency) for the round-trip message ...
... Displays the elapsed time (latency) for the round-trip message ...
slides 3
... • Most file transactions are not long enough • Consequently, TCP can spend a lot of time with small windows, never getting the chance to reach a sufficiently large window size • Fix: Allow TCP to build up to a large window size initially by doubling the window size until first loss ...
... • Most file transactions are not long enough • Consequently, TCP can spend a lot of time with small windows, never getting the chance to reach a sufficiently large window size • Fix: Allow TCP to build up to a large window size initially by doubling the window size until first loss ...
Week 4: Monetary Transactions in Ecommerce
... sending end and reassembly (reconstructing the original message into a single whole) at the receiving end. • The network layer is responsible for addressing and routing of the message. • The network and transport layers also perform encapsulation of message segments from the application layer, passi ...
... sending end and reassembly (reconstructing the original message into a single whole) at the receiving end. • The network layer is responsible for addressing and routing of the message. • The network and transport layers also perform encapsulation of message segments from the application layer, passi ...
A Simple and Efficient MAC-Routing Integrated Algorithm for Sensor
... A Simple and Efficient MACRouting Integrated Algorithm for Sensor Network R. Rugin and G. Mazzini University of Ferrara, via Saragat 1, 44100 Ferrara, Italy ...
... A Simple and Efficient MACRouting Integrated Algorithm for Sensor Network R. Rugin and G. Mazzini University of Ferrara, via Saragat 1, 44100 Ferrara, Italy ...
ppt - The Stanford University InfoLab
... Routing Packets • No router knows how to get from any one computer to any other • If a router doesn’t know the destination, it passes the packet to another router believed to be closer • This router repeats the process • So a packet hops from router to router until it finds the destination ...
... Routing Packets • No router knows how to get from any one computer to any other • If a router doesn’t know the destination, it passes the packet to another router believed to be closer • This router repeats the process • So a packet hops from router to router until it finds the destination ...
Slide 1
... source and send back an acknowledgment message when the data is received. The sender keeps a record of each data packet (TCP segment), that it sends and expects an acknowledgment. Once the source sends a packet, it starts a timer and waits for an acknowledgment before sending the next packet. If the ...
... source and send back an acknowledgment message when the data is received. The sender keeps a record of each data packet (TCP segment), that it sends and expects an acknowledgment. Once the source sends a packet, it starts a timer and waits for an acknowledgment before sending the next packet. If the ...
paper
... thousands of people share an international link bandwidth equivalent to an average residential ADSL connection. Various fast TCP variants such as H-TCP [4] and Hybla [5] attempt to establish a stable flow across long-latency connections, but are generally aimed at large-bandwidth scenarios to transf ...
... thousands of people share an international link bandwidth equivalent to an average residential ADSL connection. Various fast TCP variants such as H-TCP [4] and Hybla [5] attempt to establish a stable flow across long-latency connections, but are generally aimed at large-bandwidth scenarios to transf ...
COS 461: Computer Networks Spring 2009 (MW 1:30‐2:50 in CS 105) Mike Freedman Teaching Assistants: WyaI Lloyd and Jeff Terrace
... Resource AllocaWon: CongesWon Control ...
... Resource AllocaWon: CongesWon Control ...
11/18
... – individually addressed packages, like postcards in the postal system "connectionless" – stateless: no memory from one packet to next each packet is independent of others, even if in sequence and going same place – unreliable: packets can be lost or duplicated ("best effort" delivery) – packets can ...
... – individually addressed packages, like postcards in the postal system "connectionless" – stateless: no memory from one packet to next each packet is independent of others, even if in sequence and going same place – unreliable: packets can be lost or duplicated ("best effort" delivery) – packets can ...
Fundamentals of Computer Networks ECE 478/578
... Limitations of the network layer Can drop messages (routers may incurr buffer overflow etc.) Can reorder messages Deliver duplicate copies of the same message Limit messages to finite size (eg. IP size is limited) ...
... Limitations of the network layer Can drop messages (routers may incurr buffer overflow etc.) Can reorder messages Deliver duplicate copies of the same message Limit messages to finite size (eg. IP size is limited) ...
Vidhatha Technologies
... important as well because practical congestion control protocols need to set retransmission timeout values based on the packet delay, and such parameters could significantly impact the speed of recovery when packet loss occurs. Packet delay is also important for multimedia traffic, some of which hav ...
... important as well because practical congestion control protocols need to set retransmission timeout values based on the packet delay, and such parameters could significantly impact the speed of recovery when packet loss occurs. Packet delay is also important for multimedia traffic, some of which hav ...
Chap3
... But after timeout event: CongWin instead set to 1 MSS; window then grows exponentially to a threshold, then grows linearly CongWin ...
... But after timeout event: CongWin instead set to 1 MSS; window then grows exponentially to a threshold, then grows linearly CongWin ...
18. Distributed Denial of Service (DDoS) ENEE 757 | CMSC 818V Today’s Lecture
... – Path can be long – No extra fields in current IP packet format • Changes to format too much to expect ...
... – Path can be long – No extra fields in current IP packet format • Changes to format too much to expect ...